Maintenance workpiece: slurry pump guard jacket,slurry pump guard plate.
Material: high chrome alloy
The condition before repairing: perforated scrapping part
The maintenance difficulties: The grain diameter of material is large,the largest particle diameter can reach to 50mm.
Material selection: BD7041 super wear resistant coating,BD426T special undercoat,cast iron welding rod, φ8 rebar
Construction tools: angle grinder,wire brush,plaster knife,plastic knife,rubber hammer,special rounding tools,hair brush,electronic scale,welding machine.
Auxiliary materials: cleaning agent,duster cloth,gloves.
Construction technology of BD7041 super abrasion resistant coatings:
1.Do the electric welding on the defect area larger part with reinforcement bar.
2.Weld the spot with the electric welding on the pending-repair part.
3.Clean up and polish the needing-repair part of the pending-repair workpiece.
4.Configure the BD426T special undercoat,then make it brush coating on the pending-repair part.
5.Configure BD7041 super wear resistant coatings and make it be coating on the pending-repair part,knock on it to be compacted with rubber hammer,then trim the surface with special rounding tools,make the surface be flat and smooth.
6.Curing for 24 hours,when the temperature is low,should take heating measures to promote the curing.
Material utilization amount: 36Kg BD7041 super wear resistant coating, 1Kg BD426T special undercoat.
